Mignon Good Eberhart (July 6, 1899, Lincoln, Nebraska - October 8, 1996, Greenwich, Connecticut) was an American author of mystery novels. She had one of the longest careers (from the 1920s to the 1980s) among major American mystery writers. She was president of the Mystery Writers of America and was awarded their Grand Master Award in 1971, and in 1994 received the Agatha Award: Malice Domestic Award for Lifetime Achievement. She died in 1996 and is buried at Long Island National Cemetery beside her husband, Alanson Eberhart, who had served as a Navy lieutenant commander in World War II.